Prepare method system and its application of catalyst

摘要

The present invention discloses preparation method, it is characterised in that preparation process is catalyst, carry out connection source metal, compound and containing replace metal alkyl common solvent between the stage of reaction before do not have metal source compound with it is above-mentioned containing replace electron donor solvent. Said preparation optionally carries out in the presence of a catalyst, unsaturated hydrocarbons. Chromium, nickel, cobalt, iron, molybdenum or copper compound, especially chromium compound can preferably indicate source metal. The compound is preferably by indicating to contain substituted azole or 2, and the metal that 5-dimethylpyrrolide and alkyl bromide indicate is preferably by aluminium, lithium, magnesium or zinc derivative, especially aluminium derivative. It has gone out to carry with preparation in halide when preparing this system also and can add carry. It is also required in the present invention and prepares catalyst for trimerization system, oligomeric or polymerized olefmic compounds using such.